Titan Aero fan options

Discussion in 'Titan' started by bomtarnes, May 5, 2017.

  1. bomtarnes

    bomtarnes Member

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    Just fitted my new titan aero- lovely bit of kit.

    Stock fan however is rather loud. Have put a noctua fan on with much reduced noise.

    Should I expect any issues in the longer term?
     
  2. danzca6

    danzca6 Well-Known Member

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    There needs to be a balance between noise level and cfm. The noctua fans might not push enough air. The Good news is that the Aero uses a 40mm fan and there are more options out there at that size
     
  3. bomtarnes

    bomtarnes Member

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    The Noctua NF-A4x10 running at 12v pushes 4.8cfm which is pretty respectable. The only documentation refers to heatsink temperature being "cool" which it certainly manages.
     
  4. Mojorific

    Mojorific Member

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    I tried the Noctua fan, and didn't feel comfortable that it was doing enough to cool. The amount of air over the heat sink was greatly reduced.

    I wouldn't trust it longer term.
     
  5. Kevin Hester

    Kevin Hester Member

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    In this video at the 1:00 mark E3D shows a very interesting little fan that looks like it is made to fit the aero. Any chance we can get the STL for this? I'm interested in mounting an aero to a pegasus 10" printer.
     
  6. Antoine

    Antoine Well-Known Member
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    Kevin. Here is the .STL used to print the part in this video. It was specifically designed to fit the I3 MkII used there, not sure about the compatibility with your specific printer.
     

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  7. Kevin Hester

    Kevin Hester Member

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  8. 9lz

    9lz New Member

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    How is the Noctua fan working out for you bomtarnes?

    Happy with my new aero, certainly a great upgrade from fake chinese stuff.
    But the stock fan noise is bothering me, and I'm wondering if this stock fan is designed to cool enough to run the hotend at 400c?

    If so my thinking is the Noctua 40x40x10 might be sufficient, or maybe the slightly beefier 40x40x20, seeing as I never go over 230c?

    At this point I'm even considering a 40mm to 60mm fan adapter, considering all the time and effort I've spent making my printer quieter in all other parts (rubber motor mounts, temperature controlled fan in power supply, dampening feet under steel frame... you get the gist of it)
    Pretty much only hear this one fan when it's working in the other room now.

    Anyone got any other noise cancelling tips for the aero?
     
  9. The_Mechanic

    The_Mechanic New Member

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    Hello dear community.

    I bought a noctua 40x40x20 fan in order to replace the stock one on the titan aero, but I'm concerned about the airflow.
    I've also a stepup converter beside me. I'll try to connect the fan to the stepup converter and run it with more volts, as recommended.

    It would be nice to get a answer from the e3D staff.

    I'll keep you up to date.

    Cheers.
     
  10. Agnius

    Agnius Member

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    Here is sone info for you. Stock e3d fan does 4.1cfm or 6.96m^3/h, 40x40x10mm 12V noctua is 8.2m^3/h so it will do better job cooling aero with silence. Info on cfm came from Lawson @ e3d:

    "Hi Agnius,

    The fan we supply has a CFM rating of 4.1 and I know that Noctua are a reputable brand, so I'm sure anything with a similar CFM rating will work perfectly fine as long as the ducting is dealt with appropriately.

    Kind regards,

    Lawson"
     
  11. Phaedrux

    Phaedrux Member

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    It's a more complex situation than just CFM. The CFM rating given for fans are calculated based on running the fan in open air. When you run the fan against any resistance (say blowing into the fins of a heatsink) the CFM drops substantially unless the fan was designed with a high enough static pressure to overcome the resistance.

    The design of the blades is different for fans intended to move a large volume of air (CFM) versus blades designed to push air into and through something like a heatsink or confined enclosure.

    That said, I've been running a 12v 40x10 noctua on my aero for a little while now and it's been fine with PLA and PETG temps. If I was going to do high temp printing I'd probably want to go with the 40x20 Noctua which has much greater static pressure.

    A good rule of thumb is that thicker fans provide more static pressure, because the thickness allows the blades to have a higher angle of attack and a larger "scoop" shape to put some force behind the air. If you can't go thicker, you usually just spin the blades faster to generate more pressure. Hence the stock fan having slightly lower CFM but still spinning faster and louder and thus performing as good or better.
     

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